1 files changed, 3 insertions, 3 deletions
diff --git a/MdeModulePkg/Include/Library/UdpIoLib.h b/MdeModulePkg/Include/Library/UdpIoLib.h
index 03618f61bb..f0254177fe 100644
--- a/MdeModulePkg/Include/Library/UdpIoLib.h
+++ b/MdeModulePkg/Include/Library/UdpIoLib.h
@@ -60,7 +60,7 @@ typedef struct {
 **/
 typedef
 VOID
-(*UDP_IO_CALLBACK) (
+(EFIAPI *UDP_IO_CALLBACK) (
   IN NET_BUF                *Packet,
   IN UDP_END_POINT          *EndPoint,
   IN EFI_STATUS             IoStatus,
@@ -173,7 +173,7 @@ struct _UDP_IO {
 **/
 typedef
 EFI_STATUS
-(*UDP_IO_CONFIG) (
+(EFIAPI *UDP_IO_CONFIG) (
   IN UDP_IO                 *UdpIo,
   IN VOID                   *Context
   );
@@ -190,7 +190,7 @@ EFI_STATUS
 **/
 typedef
 BOOLEAN
-(*UDP_IO_TO_CANCEL) (
+(EFIAPI *UDP_IO_TO_CANCEL) (
   IN UDP_TX_TOKEN           *Token,
   IN VOID                   *Context
   );